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o3 Mini vs Inkling Small

Inkling Small leads o3 Mini on the Artificial Analysis Intelligence Index, 25.7 to 12.5, and Inkling Small costs 3.7x less per output token ($1.20 vs $4.40 per million). Updated October 22, 2026; 48 benchmarks have a result for both.

Replace o3 Mini Replace Inkling Small
o3 MiniOpenAI
Coding
No data
Overall
38.0
Output $/M
$4.40
1
T Inkling SmallThinking Machines
Coding
27.3
Overall
43.6
Output $/M
$1.20
47
vs boards won of 48 shared

o3 Mini or Inkling Small: which to pick

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; o3 Mini has none, so the two cannot be ranked on coding.

Pick o3 Mini for work measured by Mystery game puzzles, where it leads.

Model Ao3 MiniOpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BInkling SmallThinking Machines27.3/1004 independent benchmarks$0.16 per solved task
Shared results
48
o3 Mini only
23
Inkling Small only
36
Like-for-like categories
6 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
o3 Mini not benchmarked, Inkling Small 27.3 from 4 benchmarks.
Widest category
Reasoning, 17.2 points apart on average over 10 shared benchmarks.
Widest single gap
ARC-AGI: o3 Mini 34.5% against Inkling Small 84.0%, 49.5 points apart on a 0 to 100 scale.
Output price
o3 Mini $4.40 against Inkling Small $1.20 per million output tokens, 3.7x apart.
Context window
o3 Mini takes 200K tokens, Inkling Small 524K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
Categoryo3 MiniBarsInkling SmallTies
Coding04
Intelligence02
Reasoning19
Math05
Knowledge09
General018
All shared boards147
CodingLike-for-likeSix of these boards feed the Vibe Coding Index04
Coding benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
Aider polyglot60.4%Not measuredOnly o3 Mini measured
SWE-bench Verified42.4%Not measuredOnly o3 Mini measured
SWE-bench Lite32.3%Not measuredOnly o3 Mini measured
LMArena WebDevNot measured1409Only Inkling Small measured
AA Coding IndexNot measured52.9Only Inkling Small measured
LiveCodeBench (Vals AI)71.5%85.9%Inkling Small
SWE-bench Verified (Vals AI)Not measured82.2%Only Inkling Small measured
Terminal-Bench 4 (Vals AI)Not measured0.0%Only Inkling Small measured
Vibe Code Bench (Vals AI)Not measured19.1%Only Inkling Small measured
Code migration (Vals AI)Not measured13.7%Only Inkling Small measured
ProgramBench (Vals AI)Not measured0.5%Only Inkling Small measured
IOI (Vals AI)Not measured9.3%Only Inkling Small measured
Terminal-Bench 2.1 (Vals AI)Not measured55.1%Only Inkling Small measured
SkillsBench (Vals AI)Not measured33.6%Only Inkling Small measured
CyberBench (Vals AI)Not measured64.1%Only Inkling Small measured
LiveCodeBench (Artificial Analysis run)73.4%Not measuredOnly o3 Mini measured
SciCode42.8%49.7%Inkling Small
Terminal-Bench Hard (Artificial Analysis run)6.8%Not measuredOnly o3 Mini measured
GSO-Bench1.3%Not measuredOnly o3 Mini measured
WeirdML43.7%Not measuredOnly o3 Mini measured
Cybench22.5%Not measuredOnly o3 Mini measured
LMArena Text: coding13781450Inkling Small
LMArena Text: software and IT13641447Inkling Small
LMArena WebDev: ReactNot measured1399Only Inkling Small measured
LMArena WebDev: HTMLNot measured1398Only Inkling Small measured
LMArena WebDev: from an imageNot measured1410Only Inkling Small measured
SciCode7.7%Not measuredOnly o3 Mini measured
Neither model has a result on the other 12 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
AA Intelligence Index12.525.7Inkling Small
Epoch Capabilities Index140.2150.3Inkling Small
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
Agentic work benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
AA Agentic IndexNot measured23.5Only Inkling Small measured
Finance Agent (Vals AI)Not measured41.3%Only Inkling Small measured
Tax Agent Bench (Vals AI)Not measured15.4%Only Inkling Small measured
Legal Research Bench (Vals AI)Not measured25.5%Only Inkling Small measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured2.9%Only Inkling Small measured
Excel Modeling Benchmark (Vals AI)Not measured31.8%Only Inkling Small measured
τ²-Bench Telecom31.3%Not measuredOnly o3 Mini measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index19
Reasoning benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
GPQA Diamond75.5%83.6%Inkling Small
GPQA Diamond (Artificial Analysis run)77.3%89.5%Inkling Small
Humanity's Last Exam (Artificial Analysis run)12.0%33.3%Inkling Small
GPQA Diamond (Epoch AI run)77.0%88.5%Inkling Small
ARC-AGI34.5%84.0%Inkling Small
ARC-AGI-23.0%40.1%Inkling Small
SimpleBench22.8%Not measuredOnly o3 Mini measured
Chess puzzles15.0%Not measuredOnly o3 Mini measured
Mystery game puzzles7.0%6.0%o3 Mini
LMArena Text: hard prompts13651423Inkling Small
LMArena Text: expert13641441Inkling Small
LMArena Text: hard prompts in English13751429Inkling Small
LMArena Vision: diagramsNot measured1251Only Inkling Small measured
LMArena Vision: homeworkNot measured1257Only Inkling Small measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index05
Math benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
AIME86.5%Not measuredOnly o3 Mini measured
MATH 500 (Vals AI)91.8%Not measuredOnly o3 Mini measured
MGSM (Vals AI)91.3%Not measuredOnly o3 Mini measured
OTIS Mock AIME76.9%90.0%Inkling Small
FrontierMath, tiers 1 to 318.6%46.3%Inkling Small
FrontierMath, tier 40.0%17.1%Inkling Small
ProofBenchNot measured6.0%Only Inkling Small measured
MATH level 596.5%Not measuredOnly o3 Mini measured
LMArena Text: math13961459Inkling Small
LMArena Text: mathematical work13991441Inkling Small
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index09
Knowledge benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
MMLU Pro78.7%85.6%Inkling Small
LegalBench (Vals AI)71.5%83.0%Inkling Small
CorpFin (Vals AI)45.3%69.6%Inkling Small
TaxEval (Vals AI)69.4%75.5%Inkling Small
MortgageTax (Vals AI)Not measured62.3%Only Inkling Small measured
MedQA (Vals AI)94.8%Not measuredOnly o3 Mini measured
MedCode (Vals AI)Not measured37.9%Only Inkling Small measured
MMLU Pro (Artificial Analysis run)80.2%Not measuredOnly o3 Mini measured
SimpleQA Verified15.3%19.1%Inkling Small
LMArena Text: science13391428Inkling Small
LMArena Text: medicine and healthcare13301413Inkling Small
LMArena Text: legal and government13281415Inkling Small
LMArena Text: business and finance13131413Inkling Small
Neither model has a result on the other 5 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index018
General benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
Vals IndexNot measured27.6%Only Inkling Small measured
Public Benefits Bench (Vals AI)Not measured59.4%Only Inkling Small measured
SAGE (Vals AI)Not measured32.7%Only Inkling Small measured
MedScribe (Vals AI)Not measured84.1%Only Inkling Small measured
Vals Multimodal IndexNot measured50.0%Only Inkling Small measured
IFBench67.1%Not measuredOnly o3 Mini measured
Long context reasoning (AA-LCR)43.0%75.7%Inkling Small
DTBench68.8%Not measuredOnly o3 Mini measured
LMCA19.0%Not measuredOnly o3 Mini measured
Fiction.LiveBench50.0%Not measuredOnly o3 Mini measured
Creative writing (Lech Mazur)61.7%Not measuredOnly o3 Mini measured
LMArena Text13371413Inkling Small
LMArena Text: instruction following13371399Inkling Small
LMArena Text: creative writing12861334Inkling Small
LMArena VisionNot measured1237Only Inkling Small measured
LMArena Text: English13511421Inkling Small
LMArena Text: non-English13191401Inkling Small
LMArena Text: Chinese13791464Inkling Small
LMArena Text: German13031408Inkling Small
LMArena Text: Japanese12861401Inkling Small
LMArena Text: Korean13131367Inkling Small
LMArena Text: French13341435Inkling Small
LMArena Text: Spanish13211422Inkling Small
LMArena Text: Russian13041394Inkling Small
LMArena Text: Polish12941428Inkling Small
LMArena Text: multi-turn13201416Inkling Small
LMArena Text: longer queries13431402Inkling Small
LMArena Text: writing and language13131357Inkling Small
LMArena Text: entertainment and media12831352Inkling Small
LMArena Vision: EnglishNot measured1243Only Inkling Small measured
LMArena Vision: ChineseNot measured1292Only Inkling Small measured
LMArena Vision: reading textNot measured1243Only Inkling Small measured
LMArena Vision: humorNot measured1207Only Inkling Small measured
LMArena Vision: creative writingNot measured1205Only Inkling Small measured
Neither model has a result on the other 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o3 Mini and Inkling Small
Benchmarko3 MiniInkling SmallLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

o3 Mini$0.0033Fits in one request
Inkling Small$0.0010Fits in one request

Inkling Small costs less

Repository review

50K input + 3K output tokens

o3 Mini$0.068Fits in one request
Inkling Small$0.026Fits in one request

Inkling Small costs less

Agent loop

200K input + 10K output tokens

o3 Mini$0.264Exceeds the context window
Inkling Small$0.102Fits in one request

Inkling Small costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of o3 Mini and Inkling Small
SpecificationOpenAI o3 MiniThinking Machines Inkling Small
MakerOpenAIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedJanuary 31, 2025July 30, 2026
Context window200K524K
Input $/Mtok$1.10$0.45
Output $/Mtok$4.40$1.20
Coding indexNot benchmarked27.3
Independent measurements behind it04
Cost per solved taskNot computable$0.16
SourceOpenRouter listingOpenRouter listing

Questions

Is o3 Mini better than Inkling Small for coding?

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; o3 Mini has none, so the two cannot be ranked on coding. Pick o3 Mini for work measured by Mystery game puzzles, where it leads.

Which is cheaper, o3 Mini or Inkling Small?

o3 Mini costs $1.10 per million input tokens and $4.40 per million output tokens; Inkling Small costs $0.45 and $1.20. Cost per solved task is known for Inkling Small only.

Which has the bigger context window, o3 Mini or Inkling Small?

Inkling Small, with 524K tokens against 200K.

How many benchmarks is the o3 Mini vs Inkling Small comparison based on?

48 benchmarks have a result for both models as of October 22, 2026. o3 Mini's coding index rests on 0 independent benchmarks and Inkling Small's on 4. Where only one model has a result, the page says so instead of naming a winner.

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